Gas valve



June 13, 1939.

R. E SCHOENBERGER GAS VALVE 2 Sheets-Sheet 1 Filed May '7, 1938 INVENTOR+W MW W A TTORNEYS.

June 13, 1939. R. E, SCHOENBERGER 2,162,232

GAS VALVE Filed May 7, 1938 2 Sheets-Sheet 2 2 k "I E- i IN VEN TOR W x}ATTORNEY g Patented June 13, 1939 UNITED STATES PATENT OFFICE GAS VALVEApplication May 'z, 1938, Serial No. 206,651

4 Claims.

This invention relates to gas valves for controlling the flow of gas toa double gas range burner of the combined simmer and main burner type.

5 One of the principal objects of the invention is to provide a simplyconstructed eflicient valve,

economical of manufacture and having four positions, wherein, in thefirst position of thevalve a reduced supply of gas is directed to thesimmer burner only; in a second position the simmer burner receives thefull or maximum flow, while in the other two positions full and reducedsupply of gas is respectively delivered to both burners.

A still further object-of this invention is to provide a valve of thistype which is simple in construction and operation and very effective toaccomplish the desired results and having certain details of structureand combination of parts hereinafter more fully described.

* In the accompanying drawings:

Figure 1 is a partial section of the valve showing the leads to thesimmer and main burner, taken on line l-I of Figure 3;

Figure 2 is a partial section of the valve on line 2-2 of Figure 3; V

Figure 3 is a front end elevation of the valve;

Figure 4 is a diagrammatic view of the valve in section showing theleads to the main and simmer burner in shut off position;

-J Figure 5 is a section on line 55 of Figure 4;

Figure 6 is a diagrammatic view of the cap showing the floating washerin the position assumed when the valve is in shut off position;

Figure '7 is a diagrammatic view of the valve 5 in section showing theleads to main and simmer burner in low simmer position;

Figure 8 is a section on line 8-8 of Figure 7;

Figure 9 is a diagrammatic view of the cap and floating washer in lowsimmer position;

0 Figure 10 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in full simmer position;

Figure 11 is a section on line ll-|l of Figure 10;

5 Figure 12 is a diagrammatic view of the cap showing the floatingwasher in the position assumed by the washer when the valve is in fullsimmer position;

Figure 13 is a diagrammatic view of the valve 3 in section showing theleads to main and simmer burner in full simmer and main burner position;

Figure 14 is a section on line l4l4 of Figure 13;

Figure 15 is a diagrammatic view of the cap and floating washer in fullsimmer and main position;

Figure 16 is a diagrammatic view of the valve in section showing theleads to main and simmer burner in low simmer and low main burnerposition;

Figure 17 is a section on line l'l-l'l of Figure 16;

Figure 18 is a diagrammatic view of the cap and floating washer in lowsimmer and low main position; 5

Figure 19 is a perspective view looking from the bottom showing theseveral stop positions in the cap;

Figure 20 is a the plug valve;

Figure 21 is a perspective view of the floating washer; and

Figure 22 is a partial perspective view of the valve stem. The improvedvalve comprises a valve hous- 15 mg or casing I, having therein a plugreceiving bore 2, which extends inwardly from the open outer end of thecasing to the bottom wall 3 thereof. Projecting downwardly from thecasing is a threaded nipple 4 adapted for mounting the 20 valve,preferably in horizontal position, on the upper portion of a gasmanifold, not shown, and whereby a supply of gas for the valve housingis obtained through the vertically disposed gas supply passage 5, forfeeding the burners not shown, 25 however it will be understood that thevalve may be supported in any desired position.

Projecting inwardly or rearwardly from the inner end of the housing I,on opposite sides of partial view in perspective of 10 the longitudinalaxis of the bore 2, are two screw threaded parallel nipples 6 and l forconnection with the respective main and simmer burners. The gas outletpassages 8 and 9 through these nipples are provided with fixed needlevalves in and II which cooperate with adjustable threaded and perforatedcaps l2 and i2 for regulating the volume of gas which may flow throughthe cap perforations or orifices l3 and M to the usual mixing tubes, notshown.

A tapered plug valve l5 adapted to be snugly but rotatably received inthe bore 2 of the casing I, with its inner end spaced from the bottomwall 3 of the bore, provides a space or chamber H5 in the lower end ofthe bore with which the simmer burner outlet passage 9 communicates.Thus a small orifice or passage ll through the wall of the bore,adjacent the bottom wall 3 thereof, leads directly to the simmer passage9. The main burner outlet passage 8, communicates at its outer end withthe bore 2, through the medium of a cross passage 18, which extendsthrough the casing to the bearing surface of the bore. The main supplypassage 5 terminates at its inner end in the bearing surface of the plugreceiving bore, in the same vertical plane as that 5.3 of the passage ororifice l8.

The valve plug is formed with a relatively large transverse slot l9 cutin the side of the plug. There are also two aligned oppositely disposedbores or pockets 20 and 2| drilled in the plug parallel to the crossslot. Small by-pass orifices 22 and 28, drilled through the walls 24 and26 separating the pockets 24 and 2! from the cross slot i9, place theinner ends 0! these pockets in communication with the slot. Asubstantially longitudinally disposed slot 26, in the plug ll, placesthe transverse slot or passage i9 and the space or chamber it, incommunication with each other in all positions of the Plug.

In operation the plug valve i6 is manually rotated by means of a valvestem 34 having its inner end extending into and interengaging with ahollow extension 26 formed on the outer end of the plug, the stem beingprovided with an operating handle 66 rigidly attached thereto by anysuitable fastening means. Hollow extension 35 is formed with twooppositely arranged slots 36 and 31 of different width to slidablyreceive flnger portions 36 and 39, integrally formed on the inner end ofstem 24 when the latter is partly inserted within the hollow extension.The finger portions are proportioned to flt the slots 26 and I1 and areof different width to insure proper assembly.

A flanged apertured cap member 40 sleeved over the valve stem is formedwith a depending flange 4! having apertured ears 42 and 42' which seatupon and are secured to laterally extending apertured lugs 43 and 43',formed on the outer end of the casing i and in spaced relation to theend face thereof. The upwardly facing portion of the flange 4i is formedwith a cut away portion or recess 44 adjacent one side of the ear 42,and the downwardly facing portion of the flange has a cut away portionor recess 46 between the two ears 42, 42. One end of recess 44 serves asa stop shoulder 46 and the opposite end walls of recess 46 likewiseprovide stop shoulders 41 and 48 for halting rotation of the valve atcertain positions, when the elongated arm 49 of a lock washer 50, isslidably but non-rotatably seated within the hollow extension 35 of thecasing and in engagement with the slots or recesses 44-45.

When the valve is in oil or inactive position arm 49 engages stopshoulder 46 and prevents rotation in a clockwise direction. If the valveis now rotated in an anti-clockwise direction until the arm 49 of lockwasher 69, registers with a recess 6| formed in the ear 42 of cap 40, acoil spring 62 seated in hollow extension 35 of plug i6, forces the arm49 into this recess thus latching the valve in its flrst active positionand in which a reduced supply of gas is supplied to the simmer burner.Further anti-clockwise movement of the valve to its second positioncauses the lock washer to snap into recess 44 where it is held againstreverse movement by the shoulder 41, except that when the stem ismanually moved in an. axial direction by pressing on handle 60, and thelock washer is thus moved out of recess 44, the valve movement can bereversed. In this second active position a full supply of gas isreceived by the simmer burner. If the anti-clockwise rotation of thevalve is continued until the lock washer engages shoulder 46, the valvewill be in position to deliver a full or maximum supply of gas to bothburners. In order to rotate the valve to its fourth position, in whichthere is a restricted flow of gas to both main and simmer burners, it isnecessary to move the stem axially to disengage the lock washer from theshoulder 46 to permit further anti-clockwise in the inner end of bore2,-

movement of the valve, until halted by a stop shoulder 68.

As previously stated there are four active valve positions, low simmeronly. hi h simmer only. full main and simmer and low simmer and mainpositions respectively. In the first position, the inlet end of theshort pocket or e 26 in the plug registers with the gas supply passage6, thus permitting gas to flow into this passage or pocket and thencethrough the relatively small by-pass oriilce or passage 22, leading frompocket 26 to the cross slot I. From the cross slot II the flow isthrough longitudinally disposed slot 26 to the chamber l6 at the bottomof plug receiving bore- 2 and thence out through passage II to thesimmer burner outlet passage 9, the outlet passage 8 to the main burnerbeing closed in this position. The apertured caps l2 and i2 are alwaysset for the desired maximum flow of gas to the respective burners, butthe restricted or metered by-pass passage 22 is of a size or capacity toamply meet maximum low flame simmer burner requirements.

Further anti-clockwise movement brings the plugs into second or fullsimmer position in which the transverse slot l9 in the plug valvecommunicates with the simmer burner outlet 9, as well as with the supplypassage 6, the outlet passage to the main burner remaining closed. Afull flow of gas will thus flow into cross slot i9 and through thesubstantially iongitudinally disposed slot 26 and thence into thechamber or space iii in the end 01 bore 2. From chamber ii the gaspasses out through orifice l1 into the simmer burner outlet passage 9,as in the first or low simmer position.

Still further rotation in an anti-clockwise direction brings one end ofthe cross slot i9 into communication with the main burner outlet passage6, while the other end of the cross slot remains in communication withthe supply passage. A full volume of gas will now flow through the slotsi9 and 26 into chamber i6 and thence to simmer burner outlet passage 9.At the same time a portion of the gas from the main supply, sufiicientto maintain the main burner on high flame, flows from slot i9 into andthrough main burner outlet passage 8.

Slight anti-clockwise rotation of the valve will now bring the passageor pocket 2i into register with supply passage 5, and the cross slot I9will remain in communication with the main burner outlet passage 8 andthe supply to both burners will be reduced. Thus a reduced volume of gasfrom pocket 2| will flow through the metered or restricted by-passorifice or passage 22 to the cross slot i9 and thence through slot 26 tochamber l6 and simmer burner outlet 9. At the same time a portion ofthis gas, enough to support a reduced main burner flame flows from thecross slot i9 to main burner outlet passage 6. It will be noted that theby-pass oriflce or passage 22, leading from pocket 20, meets the lowflame requirements of the simmer burner only, whereas the by-pass 23services both burners when the valve is in its last position.Consequentiy the latter by-pass is larger than the former, or of an areato carry a maximum supply of gas for maintaining a reduced or low flameat both burners.

Having thus described the invention, what I claim is:

l. A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a plug having rotatable bear ing insaid bore and spaced from said end wall to form a gas chamber in the endof said bore, a first outlet passage leading from said gas chamber toone burner and a second outlet passage leading from the bearing surfaceof said bore to the other burner, said casing having a gas supplypassage opening into the bore in a plane with the inlet end of saidsecond outlet passage, said plug having a cross slot opening into thebearing surface oi. said plug receiving bore in a plane with said gassupply passage, and a substantially longitudinally disposed slot in theplug communicating at opposite ends with said transverse slot and saidgas chamber, and two restricted by-pass passages placing said transverseslot in communication with the hearing surface of said bore such that inone rotary position of the plug a reduced volume of gas may fiow throughone of said by-pass passages into the cross slot and thence through theiongitudinally disposed slot into said gas chamber and first outletpassage, the fiow of gas to the second outlet passage being sealed bythe plug, and such that in a second position a full volume of gas mayflow from the gas supply passage directly through said slots to said gaschamber and first outlet, and such that in a third position of the pluga full volume of gas may fiow from the gas supply passage through thesaid cross slot direct to the second outlet passage and through bothslots to the gas chamber and thence to the first outlet passage, andsuch that in a fourth position a reduced volume of gas may fiow from thegas supply passage through the other of said by-passes to said crossslot direct to said second outlet passage, 2. portion of the gasdelivered to the cross slot flowing into the gas chamber through saidlongitudinally disposed slot and thence to said first mentioned outletpassage and means for rotating said plug.

2. A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a plug having rotatable bearing insaid bore and spaced from said end wall to form a gas chamber in the endof said bore, a first outlet passage leading from said gas chamber toone burner and a second outlet passage leading from the bearing surfaceof said bore to the other burner, said casing having a gas supplypassage opening into the bore, said plug having a cross slot openinginto the bearing surface of said plug receiving bore, and a substantially longitudinally disposed slot in the plug communicating atopposite ends with said transverse slot and said gas chamber, and tworestricted by-pass passages placing said transverse slot incommunication with the bearing surface of said bore such that in onerotary position of the plug a reduced volume of gas may fiow through oneof said by-pass passages into the cross slot and thence through thelongitudinally disposed slot into said gas chamber and first outletpassage, the flow of gas to the second outlet passage being sealed bythe plug, and such that in a second position a full volume of gas mayflow from the gas supply passage directly through said slots to said gaschamber and first outlet, and such that in a third position of the pluga full volume of gas may flow from the gas supply passage through thesaid cross slot direct to the second outlet passage and through bothslots to the gas chamber and thence to the first outlet passage, andsuch that in a fourth position a reduced volume of gas may flow from thegas supply passage through the other of said bypasses to said cross slotdirect to said second outlet passage, a portion of the gas delivered tothe cross slot flowing into the gas chamber through said longitudinallydisposed slot and thence to said first mentioned outlet passage andmeans for rotating said plug.

3. A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a plug having rotatable bearing insaid bore and spaced from said end wall to form a gas chamber in the endof said bore, a first outlet passage leading from said gas chamber toone burner and a second outlet passage leading from the bearing surfaceof said bore to the other burner, said casing having a gas supplypassage opening into the bore in a plane with the inlet end of saidsecond outlet passage, said plughaving a cross slot opening into thehearing surface of said plug receiving bore in a plane with said gassupply passage, and a substantially longitudinally disposed slot in theplug communicating at opposite ends with said transverse slot and saidgas chamber, and a restricted by-pass passage placing said transverseslot in communication with the bearing surface of said bore such that inone rotary position of the plug a reduced volume of gas may fiow throughsaid by-pass passage into the cross slot and thence through thelongitudinally disposed slot into said gas chamber and first outletpassage, the flow of gas to the second outlet passage being sealed bythe plug, and such that in a second position a full volume of gas mayflow from the gas supply passage directly through said slots to said gaschamber and first outlet, and such that in a third position of the pluga full volume of gas may fiow from the gas supply passage through thesaid cross slot direct to the sec'ond outlet passage and through bothslots to the gas chamher and thence to the first outlet passage, andmeans for rotating said plug.

4. A gas range valve for a double burner comprising a casing with a plugreceiving bore having an end wall, a plug having rotatable hearing insaid bore and spaced from said end wall to form a gas chamber in the endofsaid bore, a first outlet passage leading from said gas chamber to oneburner and a second outlet passage leading from the bearing surface ofsaid bore to the other burner, said casing having a gas supply passageopening into the bore, said plug having a cross slot opening into thebearing surface of said plug receiving bore, and a substantiallylongitudinally disposed slot in the plug communicating at opposite endswith said transverse slot and said gas chamber, and a restricted passageplacing said transverse slot in communication with the bearing surfaceof said bore such that in one rotary position of the plug a reducedvolume of gas may flow through one of said by-pass passages into thecross slot and thence through the longitudinally disposed slot into saidgas chamber and first outlet passage, the flow of gas to the secondoutlet passage be ing sealed by the plug, and such that in a. secondposition a full volume of gas may flow from the gas supply passagedirectly through said slots to said gas chamber and first outlet, andsuch that in a third position of the plug a full volume of gas may fiowfrom the gas supply passage through the said cross slot direct to thesecond outlet passage and through both slots to the gas chamber andthence to the first outlet passage, and means for rotating said plug.

ROBERT E. SCHOENBERGER.

